Kerry pledges 'intense' support in Iraq

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U.S. Secretary of State John Kerry met Iraqi leaders Monday as radical Sunni militants continue their march toward Baghdad during the country's tensest time since the U.S. withdrawal of troops in 2011.

"The future of Iraq depends on decisions made in the next few days and weeks," Kerry said after meeting with Iraqi Prime Minister Nuri al-Maliki, the man who some observers say needs to step down.

Al-Maliki has agreed to a July 1 deadline to begin the process to form a new government, a requirement for U.S. assistance in fighting the Islamic State in Iraq and Syria, or ISIS, Kerry said.

"Our support will be intense, sustained," and will be effective if Iraqi leaders unite to face the militant threat, he said.

With al-Maliki's Shiite-led government losing more ground to ISIS, Kerry implored the leader to rise above "sectarian motivations" to become more inclusive and make the government more representative of Iraq's population.

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Kerry also met with Iraq's foreign minister as well as Shiite and Sunni leaders.

Al-Malaki's office issued a statement after his meeting with Kerry, saying the Prime Minister told Kerry the current situation "poses a threat" not only to Iraq but the region as well. Al-Malaki "called on the countries of the world, especially countries in the region, to take it seriously," the statement said.

But outside the rooms of high-level talks, parts of Iraq are falling by the day. Here's the latest on the crisis that is spilling far beyond Iraq's borders:

Where is Iraq's military?

The United States believes "multiple Iraqi military divisions" outside Baghdad have dissolved and are plagued by problems in morale, leadership, training and equipment, according to a senior U.S. defense official.

"The readiness outside of Baghdad is certainly in question as they have ceded multiple towns. Forces in Baghdad seems to be holding today," the official said.

The United States believes there are around 10,000 fighters who are either affiliated with ISIS or members of the group, the official said, and while they are stretched thin over vast territory, they are getting support in the Sunni areas they increasingly control.

Kerry said Monday in Baghdad that President Barack Obama has prepared "a range of options for Iraq," including enhanced intelligence, joint operations centers, military advisers and "steady supplies of munitions."

But the United States is being more careful about sending additional weapons and ammunition to Iraq, because of a lack of confidence in the Iraqi troops, the defense official said.

ISIS captures more ground

Militant fighters believed to be ISIS have seized the Baiji oil refinery, the largest in Iraq, three Iraqi security sources told CNN Monday.

Earlier in the day, an Iraqi military spokesman had said that an attack was under way, but had been repelled by security forces. CNN cannot independently confirm either claim.

The Baiji refinery is a key strategic resource because it refines much of the fuel needed for internal consumption. There are already long lines at many gas stations across the country.

ISIS militants also advanced toward Baghdad over the weekend from the north and the west. At least 70% of Anbar province is now under the control of ISIS, two security officials in the region told CNN.

ISIS is on a mission to create an Islamic state across Sunni areas of Iraq and in Syria.

Photos:The ISIS terror threat

Photos:The ISIS terror threat

Wounded passengers are treated following a suicide bombing at the Brussels Airport on March 22, 2016. The attacks on the airport and a subway killed 32 people and wounded more than 300. ISIS claims its "fighters" launched the attacks in the Belgian capital.

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Syrians gather at the site of a double car bomb attack in the Al-Zahraa neighborhood of the Homs, Syria, on February 21, 2016. Multiple attacks in Homs and southern Damascus kill at least 122 and injure scores, according to the state-run SANA news agency. ISIS claimed responsibility.

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Syrian pro-government forces gather at the site of a deadly triple bombing Sunday, January 31, in the Damascus suburb of Sayeda Zeynab. ISIS claimed responsibility for the attack, according to a statement circulating online from supporters of the terrorist group.

Wounded people are helped outside the Bataclan concert hall in Paris following a series of coordinated attacks in the city on Friday, November 13. The militant group ISIS claimed responsibility for the attacks, which killed at least 130 people and wounded hundreds more.

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Emergency personnel and civilians gather at the site of a twin suicide bombing in Beirut, Lebanon, on Thursday, November 12. The bombings killed at least 43 people and wounded more than 200 more. ISIS appeared to claim responsibility in a statement posted on social media.

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Smoke rises over the northern Iraqi town of Sinjar on November 12. Kurdish Iraqi fighters, backed by a U.S.-led air campaign, retook the strategic town, which ISIS militants overran last year. ISIS wants to create an Islamic state across Sunni areas of Iraq and Syria.

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Syrian government troops walk inside the Kweiras air base on Wednesday, November 11, after they broke a siege imposed by ISIS militants.

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Members of the Egyptian military approach the wreckage of a Russian passenger plane Sunday, November 1, in Hassana, Egypt. The plane crashed the day before, killing all 224 people on board. ISIS claimed responsibility for downing the plane, but the group's claim wasn't immediately verified.

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An explosion rocks Kobani, Syria, during a reported car bomb attack by ISIS militants on Tuesday, October 20.

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Shiite fighters, fighting alongside Iraqi government forces, fire a rocket at ISIS militants as they advance toward the center of Baiji, Iraq, on Monday, October 19.

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Smoke rises above a damaged building in Ramadi, Iraq, following a coalition airstrike against ISIS positions on Saturday, August 15.

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Iraqi men look at damage following a bomb explosion that targeted a vegetable market in Baghdad on Thursday, August 13. ISIS claimed responsibility for the attack.

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In this image taken from social media, an ISIS fighter holds the group's flag after the militant group overran the Syrian town of al-Qaryatayn on Thursday, August 6, the London-based Syrian Observatory for Human Rights reported. ISIS uses modern tools such as social media to promote reactionary politics and religious fundamentalism. Fighters are destroying holy sites and valuable antiquities even as their leaders propagate a return to the early days of Islam.

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An ISIS fighter poses with spoils purportedly taken after capturing the Syrian town of al-Qaryatayn.

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Smoke rises as Iraqi security forces bomb ISIS positions in the eastern suburbs of Ramadi, Iraq, on August 6.

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Buildings reduced to piles of debris can be seen in the eastern suburbs of Ramadi on August 6.

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The governor of the Asir region in Saudi Arabia, Prince Faisal bin Khaled bin Abdulaziz, left, visits a man who was wounded in a suicide bombing attack on a mosque in Abha, Saudi Arabia, on August 6. ISIS claimed responsibility for the explosion, which killed at least 13 people and injured nine others.

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Saudi officials and investigators check the inside of the mosque on August 6.

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Mourners in Gaziantep, Turkey, grieve over a coffin Tuesday, July 21, during a funeral ceremony for the victims of a suspected ISIS suicide bomb attack. That bombing killed at least 31 people in Suruc, a Turkish town that borders Syria. Turkish authorities blamed ISIS for the attack.

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Protesters in Istanbul carry anti-ISIS banners and flags to show support for victims of the Suruc suicide blast during a demonstration on Monday, July 20.

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People in Ashmoun, Egypt, carry the coffin for 1st Lt. Mohammed Ashraf, who was killed when the ISIS militant group attacked Egyptian military checkpoints on Wednesday, July 1. At least 17 soldiers were reportedly killed, and 30 were injured.

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Syrians wait near the Turkish border during clashes between ISIS and Kurdish armed groups in Kobani, Syria, on Thursday, June 25. The photo was taken in Sanliurfa, Turkey. ISIS militants disguised as Kurdish security forces infiltrated Kobani on Thursday and killed "many civilians," said a spokesman for the Kurds in Kobani.

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Residents examine a damaged mosque after an Iraqi Air Force bombing in the ISIS-seized city of Falluja, Iraq, on Sunday, May 31. At least six were killed and nine others wounded during the bombing.

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People search through debris after an explosion at a Shiite mosque in Qatif, Saudi Arabia, on Friday, May 22. ISIS claimed responsibility for the attack, according to tweets from ISIS supporters, which included a formal statement from ISIS detailing the operation.

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Iraqi soldiers fire their weapons toward ISIS group positions in the Garma district, west of the Iraqi capital of Baghdad, on Sunday, April 26. Pro-government forces said they had recently made advances on areas held by Islamist jihadists.

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A member of Afghanistan's security forces stands at the site where a suicide bomber on a motorbike blew himself up in front of the Kabul Bank in Jalalabad, Afghanistan, on Saturday, April 18. ISIS claimed responsibility for the attack. The explosion killed at least 33 people and injured more than 100 others, a public health spokesman said.

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Iraqi counterterrorism forces patrol in Ramadi on April 18.

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Thousands of Iraqis cross a bridge over the Euphrates River to Baghdad as they flee Ramadi on Friday, April 17.

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Yazidis embrace after being released by ISIS south of Kirkuk, Iraq, on Wednesday, April 8. ISIS released more than 200 Yazidis, a minority group whose members were killed, captured and displaced when the Islamist terror organization overtook their towns in northern Iraq last summer, officials said.

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Kurdish Peshmerga forces help Yazidis as they arrive at a medical center in Altun Kupri, Iraq, on April 8.

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A Yazidi woman mourns for the death of her husband and children by ISIS after being released south of Kirkuk on April 8. ISIS is known for killing dozens of people at a time and carrying out public executions, crucifixions and other acts.

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People in Tikrit inspect what used to be a palace of former President Saddam Hussein on April 3.

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On April 1, Shiite militiamen celebrate the retaking of Tikrit, which had been under ISIS control since June. The push into Tikrit came days after U.S.-led airstrikes targeted ISIS bases around the city.

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Iraqi security forces launch a rocket against ISIS positions in Tikrit on Monday, March 30.

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The parents of 19-year-old Mohammed Musallam react at the family's home in the East Jerusalem Jewish settlement of Neve Yaakov on Tuesday, March 10. ISIS released a video purportedly showing a young boy executing Musallam, an Israeli citizen of Palestinian descent who ISIS claimed infiltrated the group in Syria to spy for the Jewish state. Musallam's family told CNN that he had no ties with the Mossad, Israel's spy agency, and had, in fact, been recruited by ISIS.

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Iraqi Shiite fighters cover their ears as a rocket is launched during a clash with ISIS militants in the town of Al-Alam, Iraq, on Monday, March 9.

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Displaced Assyrian women who fled their homes due to ISIS attacks pray at a church on the outskirts of Damascus, Syria, on Sunday, March 1. ISIS militants abducted at least 220 Assyrians in Syria.

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Safi al-Kasasbeh, right, receives condolences from tribal leaders at his home village near Karak, Jordan, on Wednesday, February 4. Al-Kasasbeh's son, Jordanian pilot Moath al-Kasasbeh, was burned alive in a video that was recently released by ISIS militants. Jordan is one of a handful of Middle Eastern nations taking part in the U.S.-led military coalition against ISIS.

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A Kurdish marksman looks over a destroyed area of Kobani on Friday, January 30, after the city had been liberated from the ISIS militant group. The Syrian city, also known as Ayn al-Arab, had been under assault by ISIS since mid-September.

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Kurdish people celebrate in Suruc, Turkey, near the Turkish-Syrian border, after ISIS militants were expelled from Kobani on Tuesday, January 27.

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Collapsed buildings are seen in Kobani on January 27 after Kurdish forces took control of the town from ISIS.

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Junko Ishido, mother of Japanese journalist Kenji Goto, reacts during a news conference in Tokyo on Friday, January 23. ISIS would later kill Goto and another Japanese hostage, Haruna Yukawa.

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ISIS militants are seen through a rifle's scope during clashes with Peshmerga fighters in Mosul, Iraq, on Wednesday, January 21.

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An elderly Yazidi man arrives in Kirkuk after being released by ISIS on Saturday, January 17. The militant group released about 200 Yazidis who were held captive for five months in Iraq. Almost all of the freed prisoners were in poor health and bore signs of abuse and neglect, Kurdish officials said.

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Smoke billows behind an ISIS sign during an Iraqi military operation to regain control of the town of Sadiyah, about 95 kilometers (60 miles) north of Baghdad, on Tuesday, November 25.

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Fighters from the Free Syrian Army and the Kurdish People's Protection Units join forces to fight ISIS in Kobani on Wednesday, November 19.

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A picture taken from Turkey shows smoke rising after ISIS militants fired mortar shells toward an area controlled by Syrian Kurdish fighters near Kobani on Monday, November 3.

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Iraqi special forces search a house in Jurf al-Sakhar, Iraq, on Thursday, October 30, after retaking the area from ISIS.

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ISIS militants stand near the site of an airstrike near the Turkey-Syria border on Thursday, October 23. The United States and several Arab nations have been bombing ISIS targets in Syria to take out the militant group's ability to command, train and resupply its fighters.

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Kurdish fighters walk to positions as they combat ISIS forces in Kobani on Sunday, October 19.

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Heavy smoke rises in Kobani following an airstrike by the U.S.-led coalition on October 18.

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Cundi Minaz, a female Kurdish fighter, is buried in a cemetery in the southeastern Turkish town of Suruc on Tuesday, October 14. Minaz was reportedly killed during clashes with ISIS militants in nearby Kobani.

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Kiymet Ergun, a Syrian Kurd, celebrates in Mursitpinar, Turkey, after an airstrike by the U.S.-led coalition in Kobani on Monday, October 13.

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Alleged ISIS militants stand next to an ISIS flag atop a hill in Kobani on Monday, October 6.

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A Kurdish Peshmerga soldier who was wounded in a battle with ISIS is wheeled to the Zakho Emergency Hospital in Duhuk, Iraq, on Tuesday, September 30.

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Syrian Kurds wait near a border crossing in Suruc as they wait to return to their homes in Kobani on Sunday, September 28.

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A elderly man is carried after crossing the Syria-Turkey border near Suruc on Saturday, September 20.

Kurdish Peshmerga fighters fire at ISIS militant positions from their position on the top of Mount Zardak, east of Mosul, Iraq, on Tuesday, September 9.

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Displaced Iraqis receive clothes from a charity at a refugee camp near Feeshkhabour, Iraq, on Tuesday, August 19.

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Aziza Hamid, a 15-year-old Iraqi girl, cries for her father while she and some other Yazidi people are flown to safety Monday, August 11, after a dramatic rescue operation at Iraq's Mount Sinjar. A CNN crew was on the flight, which took diapers, milk, water and food to the site where as many as 70,000 people were trapped by ISIS. But only a few of them were able to fly back on the helicopter with the Iraqi Air Force and Kurdish Peshmerga fighters.

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Thousands of Yazidis are escorted to safety by Kurdish Peshmerga forces and a People's Protection Unit in Mosul on Saturday, August 9.

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Thousands of Yazidi and Christian people flee Mosul on Wednesday, August 6, after the latest wave of ISIS advances.

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A Baiji oil refinery burns after an alleged ISIS attack in northern Selahaddin, Iraq, on Thursday, July 31.

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A Syrian rebel fighter lies on a stretcher at a makeshift hospital in Douma, Syria, on Wednesday, July 9. He was reportedly injured while fighting ISIS militants.

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Children stand next to a burnt vehicle during clashes between Iraqi security forces and ISIS militants in Mosul on Tuesday, June 10.

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Militants have taken over the Tal Afar airbase in northern Iraq as well as the city of Tal Afar, officials said.

On Monday, Iraqi troops prepared to recapture the airbase, Iraqi Maj. Gen. Abu al-Waleed said. "At least 1,000 Iraqi troops have amassed to the north of Tal Afar and are firing rockets at militants in control of the city," he said.

The fighters also seized the western Anbar town of Rutba, 70 miles (113 kilometers) from the borders of Jordan and Saudi Arabia, security sources in Baghdad and Anbar told CNN on Sunday.

Then there's Qaim. ISIS captured the city along the Syrian border Saturday, and the militants now enjoy a stronghold and a number of other towns in Anbar province. The fighters have a direct line to the western outskirts of Baghdad, where tension simmers just beneath the surface.

Checkpoints in the capital seemed to pop up overnight, particularly the closer one got to central Baghdad. Security forces appeared to be controlling access to neighborhoods through a mix of checkpoints and road closures.

Dozens of prisoners, five police killed

At least 71 prisoners and five police officers were killed Monday when militants attacked an Iraqi police convoy transferring inmates from one prison to another, police said.

Five militants were also killed. It was not immediately clear whether ISIS was behind the attack.

The convoy was traveling from Hilla, a predominately Shiite city south of Baghdad, to another prison north of the city. Police did not provide further details about the attack.

Iraq's military is accusing ISIS of carrying out massacres.

"Hundreds of Iraqi soldiers have been beheaded and hung and their bodies have been desecrated," said Iraq's military spokesman, Maj. Gen. Qassim Atta. "Why has the U.N. not decried these atrocious crimes, which are among the biggest crimes against humanity?"

Sharia law spreads

One of ISIS' biggest victories came when it took over Mosul, Iraq's second-largest city, this month. On Sunday, witnesses said militants paraded around the city in vehicles, announcing on loudspeakers that they have decided to form Islamic Sharia courts in Mosul.

Sharia law covers religious and nonreligious aspects of life, and ISIS has begun imposing Sharia law in the towns it controls.

Boys and girls must be separated at school. Women must wear the niqab, or full veil, in public. Music is banned, and fasting is enforced during Ramadan.

The military denies huge losses

But Iraq's military said it's not losing as much ground to ISIS as some may think. The military made a "strategic withdrawal" in some areas, Atta, the military spokesman, told reporters.

He said the withdrawals were part of a campaign to "open all these fronts so we can strengthen our positions." But Atta did not detail the specific locations.

Two security officials told CNN that Iraqi forces have withdrawn from Haditha, 168 miles (about 270 kilometers) northwest of Baghdad.

But even if some withdrawals were strategic, it's unclear when or how Iraqi forces could retake areas now in the hands of well-armed ISIS fighters.

The military said it has fought back against militants with airstrikes. Officials showed reporters footage of airstrikes they said took place in Tal Afar.

Atta said the video showed a "large number of ISIS forces fleeing these strikes" that left up to 50 people dead.

Recruiting station gets pummeled

Apparently, those trying to join Iraqi forces are at risk before they even enlist.

In the Shiite-dominated Hilla, at least four people were killed in a shelling attack on a recruiting station. Another 34 people were wounded.

Hundreds of predominantly Shiite men went to the recruiting station to answer a call to arms to protect Iraq.

U.S. sends more help

The U.S. will have a greater presence in Iraq aside from Kerry's visit this week. About 300 U.S. military advisers will arrive, a senior defense official said. They will not be deployed all at once.

The United States has reached an agreement with the Iraqi government over legal protection for those advisers, Pentagon spokesman Rear Adm. John Kirby said Monday.

"We believe these protections are adequate to the short-term assessment and advisory mission our troops will be performing in Iraq. With this agreement, we will be able to start establishing the first few assessment teams," he said.

In addition, some U.S. military personnel already at the U.S. Embassy in Baghdad will be reassigned and become advisers.

The first military advisers will focus on assessing the strengths and weaknesses of Iraqi security forces, U.S. officials said. The advisers will also assess what Iraqi military equipment and weapons may now be in the hands of ISIS, and try to get better intelligence on ISIS strategy, weapons, and movements of its fighters.

But Obama said there's only so much the United States can do.

"Part of the task now is to see whether Iraqi leaders are prepared to rise above sectarian motivations, come together, compromise," the President told CNN's Kate Bolduan.

"If they can't, there's not going to be a military solution to this problem. There's no amount of American firepower that's going to be able to hold the country together, and I've made that very clear to Mr. Maliki and all the other leadership inside of Iraq."